During a crown lengthening, a periodontist—a dentist who specializes in gum health—removes excess gum tissue. Some general dentists can also perform this procedure.
Certain situations require the dentist to also remove or reshape bone tissue to expose more of the teeth.
The following are different crown lengthening techniques:
apically repositioned flap surgery
The dentist will choose the most appropriate technique based on the cause of the excess gum tissue and the condition of the person’s mouth.
Some factors that can influence the choice of technique include:
the length of the tooth’s root, compared with its crown, called the crown to root ratio
the proximity of the root
the appearance of the root
the presence of bone loss
the position of the affected tooth or teeth
the need for a filling or cap